720048050

素因数分解:

$2^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{521}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 1358511264

約数和(自身を除く): 638463214

約数列:

[1, 2, 5, 10, 25, 50, 131, 211, 262, 422, 521, 655, 1042, 1055, 1310, 2110, 2605, 3275, 5210, 5275, 6550, 10550, 13025, 26050, 27641, 55282, 68251, 109931, 136502, 138205, 219862, 276410, 341255, 549655, 682510, 691025, 1099310, 1382050, 1706275, 2748275, 3412550, 5496550, 14400961, 28801922, 72004805, 144009610, 360024025, 720048050]

約数ペア:

[(1, 720048050), (2, 360024025), (5, 144009610), (10, 72004805), (25, 28801922), (50, 14400961), (131, 5496550), (211, 3412550), (262, 2748275), (422, 1706275), (521, 1382050), (655, 1099310), (1042, 691025), (1055, 682510), (1310, 549655), (2110, 341255), (2605, 276410), (3275, 219862), (5210, 138205), (5275, 136502), (6550, 109931), (10550, 68251), (13025, 55282), (26050, 27641)]